Stand comfortably for longer periods with this ergonomic, not-flat anti-fatigue mat. The contoured terrain mat is engineered based on human factor principles to let you move in natural comfort. Prop a foot up, take a wide stance, stretch your calves, massage your insoles, or stand still in cushioned comfort with this anti-fatigue floor mat. It"™s like a jungle gym for your feet!The patented Active Standing Mat has a contoured surface that"™s specifically engineered to encourage movement while standing. A 1"� thick floor provides excellent cushioning comfort that you can feel when standing still. Sloped sidewalls allow you to elevate one or both feet, stretch your calves and stand comfortably with a wider stance. The center massage ball lights up those neurons as it soothes and stretches your feet.LARGE NOT-FLAT ANTI-FATIGUE MAT:The Active Standing Anti-Fatigue Mat is manufactured with a premium, high-density molded foam. It"™s a solid, 1-piece design without pleather or other cheap materials to hide defects. Our industrial design engineers calculated the correct density and materials to provide cushioned, anti-fatigue properties that you can feel as soon as you step on the mat. Size, dimensions, and properties of the mat are based on human factor principles: it"™s small and light enough to be easily moved but large enough to give you room to move. The Active Standing mat fits perfectly in most cubes and offices and it"™s one of the best standing desk mats for active standing!DIMENSIONS:Weight: only 8 lbsSize: 32x19.75x3.5 inchThickness: 1 inch thick floorMaterial: polyurethaneAll measurements are approximate.